Rock Hydra [Limited Edition Alpha] Fire[+20] other than "Elemental Hero Neos"

other than "Elemental Hero Neos"

but its original ATK becomes 0

Set: Planar Chaos Type: Enchantment Rarity: Uncommon Cost: {2}{R}{R} At the beginning of the end step

This card cannot be Special Summoned except by Tributing 1 "Dark Magician"

If the target attacks

Rock Hydra [Limited Edition Alpha] Fire[+20] other than "Elemental Hero Neos"Set: Limited Edition Alpha Type: Creature Hydra Rarity: Rare Cost: {X}{R}{R} Rock Hydra enters the battlefield with X +1 +1 counters on it. For each 1 damage that would be dealt to Rock Hydra, if it has a +1 +1 counter on it, remove a +1 +1 counter from it and prevent that 1 damage. {R}: Prevent the next 1 damage that would be dealt to Rock Hydra this turn. {R}{R}{R}: Put a +1 +1 counter on Rock Hydra. Activate this ability only during your upkeep.